Earphone control method, earphone and computer readable storage medium
A control method and technology for earphones, which are applied in earphone/earphone accessories, sensors, blood vessel evaluation, etc., to reduce the number of wearing and improve convenience.
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[0098] refer to Figure 4 , the second embodiment of the present invention provides an earphone control method, based on the above image 3 In the first embodiment shown, the method further includes:
[0099] Step S40: Obtain the photoelectric data detected by the PPG sensor;
[0100] The PPG sensor emits a light signal to the skin and receives the light signal reflected by the skin tissue, converts the light signal into an electrical signal, and then converts it into a digital signal. Among them, due to the flow of blood in the blood vessels, the absorption of light varies. Therefore, under the premise that the absorption of light by blood vessels changes and the absorption of light by other tissues is basically unchanged, the obtained digital signals are divided into DC signals and The AC signal can be extracted to reflect the characteristics of blood flow by using the AC signal.
[0101] Since the ear canal is rich in capillaries and the skin is thin, at the same time, t...
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